Transmitting a mac ce message by an iab node

Abstract

Apparatuses, methods, and systems are disclosed for transmitting a MAC CE message by an IAB node. One method includes transmitting, at a first IAB node, a MAC CE message to a second IAB node. The MAC CE message includes: an ID associated with a resource configuration; a transmission power offset value; a maximum transmission power value; information corresponding to a multiplexing mode; at least one uplink beam identifier; a first indication of association with a MT of the first IAB node; a second indication of association with a cell of a DU of the first IAB node; or some combination thereof.

1 . A first integrated access and backhaul (IAB) node, comprising:
 at least one memory; and   at least one processor coupled with the at least one memory and configured to cause the first IAB node to:
 transmit a medium access control (MAC) control element (CE) message to a second IAB node, wherein the MAC CE message comprises:
 an identifier (ID) associated with a resource configuration; 
 a transmission power offset value; 
 a maximum transmission power value; 
 information corresponding to a multiplexing mode; 
 at least one uplink beam identifier; 
 a first indication of association with a mobile terminal (MT) of the first IAB node; 
 a second indication of association with a cell of a distributed unit (DU) of the first IAB node; 
 or a combination thereof. 
 
   
     
     
         2 . The first IAB node of  claim 1 , wherein the second IAB node is a parent node of the first IAB node, and the MAC CE message indicates a range of transmission power for an uplink from the first IAB node to the second IAB node. 
     
     
         3 . The first IAB node of  claim 2 , wherein the range is indicated by a combination of the maximum transmission power value and the transmission power offset value. 
     
     
         4 . The first IAB node of  claim 1 , wherein the resource configuration is provided by a radio resource control (RRC) entity. 
     
     
         5 . The first IAB node of  claim 2 , wherein the MAC CE message indicates that the parent node applies the range in response to the first IAB node using a resource associated with the resource configuration. 
     
     
         6 . The first IAB node of  claim 2 , wherein the MAC CE message indicates that the parent node applies the range in response to the first IAB node using an associated frequency resource. 
     
     
         7 . The first IAB node of  claim 1 , wherein the multiplexing mode comprises:
 the MT transmitting and the DU transmitting;   the MT receiving and the DU receiving;   the MT transmitting and the DU receiving;   the MT receiving and the MT transmitting;   or a combination thereof.   
     
     
         8 . The first IAB node of  claim 2 , wherein the MAC CE message indicates that the parent node applies the range in response to the first IAB node applying the indicated multiplexing mode. 
     
     
         9 . The first IAB node of  claim 2 , wherein the MAC CE message indicates that the parent node applies the range in response to the first IAB node applying a beam indicated by the at least one uplink beam identifier. 
     
     
         10 . The first IAB node of  claim 1 , wherein the MAC CE message is associated with third IAB node, and the third IAB node is a child node of the first IAB node. 
     
     
         11 . A method of a first integrated access and backhaul (IAB) node, the method comprising:
 transmitting a medium access control (MAC) control element (CE) message to a second IAB node, wherein the MAC CE message comprises:
 an identifier (ID) associated with a resource configuration; 
 a transmission power offset value; 
 a maximum transmission power value; 
 information corresponding to a multiplexing mode; 
 at least one uplink beam identifier; 
 a first indication of association with a mobile terminal (MT) of the first IAB node; 
 a second indication of association with a cell of a distributed unit (DU) of the first IAB node; 
 or a combination thereof. 
   
     
     
         12 . The method of  claim 11 , wherein the second IAB node is a parent node of the first IAB node, and the MAC CE message indicates a range of transmission power for an uplink from the first IAB node to the second IAB node. 
     
     
         13 . The method of  claim 12 , wherein the range is indicated by a combination of the maximum transmission power value and the transmission power offset value. 
     
     
         14 . The method of  claim 11 , wherein the resource configuration is provided by a radio resource control (RRC) entity. 
     
     
         15 . A first integrated access and backhaul (IAB) node, comprising:
 at least one memory; and   at least one processor coupled with the at least one memory and configured to cause the first IAB node to:
 to transmit a medium access control (MAC) control element (CE) message to a second IAB node, wherein the MAC CE message comprises:
 an identifier (ID) associated with a resource configuration; 
 a transmission power offset value; 
 a maximum transmission power value; 
 information corresponding to a multiplexing mode; 
 at least one uplink beam identifier; 
 a first indication of association with a mobile terminal (MT) of the first IAB node; 
 a second indication of association with a cell of a distributed unit (DU) of the first IAB node; 
 or a combination thereof; 
 
 wherein:
 the second IAB node is a parent node of the first IAB node; 
 the MAC CE message indicates a range of transmission power for an uplink from the first IAB node to the second IAB node; 
 the range is indicated by a combination of the maximum transmission power value and the transmission power offset value; 
 the multiplexing mode comprises:
 the MT transmitting and the DU transmitting; 
 the MT receiving and the DU receiving; 
 the MT transmitting and the DU receiving; 
 the MT receiving and the MT transmitting; 
 or a combination thereof; and 
 
 the MAC CE message indicates that the parent node applies the range in response to:
 the first IAB node using a resource associated with the resource configuration; 
 the first IAB node applying the indicated multiplexing mode; 
 the first IAB node applying a beam indicated by the at least one uplink beam identifier; 
 or a combination thereof. 
 
 
   
     
     
         16 . A method of a first integrated access and backhaul (IAB) node, the method comprising:
 transmitting a medium access control (MAC) control element (CE) message to a second IAB node, wherein the MAC CE message comprises:
 an identifier (ID) associated with a resource configuration; 
 a transmission power offset value; 
 a maximum transmission power value; 
 information corresponding to a multiplexing mode; 
 at least one uplink beam identifier; 
 a first indication of association with a mobile terminal (MT) of the first IAB node; 
 a second indication of association with a cell of a distributed unit (DU) of the first IAB node; 
 or a combination thereof; 
   wherein:
 the second IAB node is a parent node of the first IAB node; 
 the MAC CE message indicates a range of transmission power for an uplink from the first IAB node to the second IAB node; 
 the range is indicated by a combination of the maximum transmission power value and the transmission power offset value; 
 the multiplexing mode comprises:
 the MT transmitting and the DU transmitting; 
 the MT receiving and the DU receiving; 
 the MT transmitting and the DU receiving; 
 the MT receiving and the MT transmitting; 
 or a combination thereof; and 
 
 the MAC CE message indicates that the parent node applies the range in response to:
 the first IAB node using a resource associated with the resource configuration; 
 the first IAB node applying the indicated multiplexing mode; 
 the first IAB node applying a beam indicated by the at least one uplink beam identifier; 
 or a combination thereof. 
 
   
     
     
         17 . The method of  claim 16 , wherein the MAC CE message indicates that the parent node applies the range in response to the first IAB node using a resource associated with the resource configuration. 
     
     
         18 . The method of  claim 17 , wherein the MAC CE message indicates that the parent node applies the range in response to the first IAB node using an associated frequency resource. 
     
     
         19 . The method of  claim 16 , wherein the multiplexing mode comprises:
 the MT transmitting and the DU transmitting;   the MT receiving and the DU receiving;   the MT transmitting and the DU receiving;   the MT receiving and the MT transmitting;   or a combination thereof.   
     
     
         20 . The method of  claim 16 , wherein the MAC CE message indicates that the parent node applies the range in response to the first IAB node applying the indicated multiplexing mode.